Ten tools that run in your browser. Nothing is sent anywhere, nothing needs a login, and they all work on a phone at the plant. They give the same answers our engineers give, from the same formulas.
Most metal hose failures are length failures. Too short and it over-bends at the fittings.
Catalogue pressures are ambient figures. This converts one to the pressure your line runs at, and tells you which material governs.
Start here when sizing an expansion joint. Stainless grows about two-fifths more than carbon steel over the same rise.
Above the velocity limit an unlined corrugated bore resonates and fatigues at the crest.
An estimate. Corrugated bore costs considerably more pressure than smooth pipe of the same size.
Two different numbers depending on whether the hose moves. Using the wrong one is the commonest avoidable failure.
Plots your duty against the standard envelope. See the vibration chart below.
The force a bellows or unbraided hose puts into your anchors. Usually larger than people expect.
For handling, support design and hydrostatic test planning.
Where the numbers come from
Every lookup table behind these tools is from the EWPL Catalogue 2026 — the working pressure and bend radius table in Section 08, the derating factors in the same section, and the flow velocity limits in Section 09. The live length formulas are the ones in Section 10. Nothing here is a generic industry figure.
Two things worth knowing. The flexing bend radius is 2.9 to 5.6 times the static figure, depending on size, so the duty you pick changes the answer a great deal. And for pulsating or surge service, halve the working pressure before you start.
What these cannot do
They size and check. They do not design. A calculator does not know that your line runs past a walkway, that the medium carries entrained solids, that the nozzle has a load limit, or that the plant does a chloride wash every shutdown. Where any of that applies, send us the conditions.